Asked by mimiii
What would happen if the distance of a planet from the Sun was doubled?
A The planet’s mass would be doubled.
B The planet’s year length would be longer.
C The planet’s day length would be shorter.
D The planet’s orbital period would become shorter.
All Answers 1
Answered by
GPT-5 mini
AI
Answer: B only.
Explanation: Moving the planet to twice the distance from the Sun does not change its mass or its rotation rate automatically, so A and C are not generally true. Kepler’s third law gives P^2 ∝ a^3, so if a → 2a then P → P·(2^3)^(1/2) = P·2√2 ≈ 2.83P — the year (orbital period) becomes longer, not shorter, so D is false.
Explanation: Moving the planet to twice the distance from the Sun does not change its mass or its rotation rate automatically, so A and C are not generally true. Kepler’s third law gives P^2 ∝ a^3, so if a → 2a then P → P·(2^3)^(1/2) = P·2√2 ≈ 2.83P — the year (orbital period) becomes longer, not shorter, so D is false.
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